Furnace



No. 65|,583. Patented lune l2, |900.

W. A. STUBBLEBINE.

FURNACE.

(Application led Oct. 5, 1.899.) (No Model.) 3 Sheets-Shae l.

N0. 65|-,583. I Patented Ilm-79u12,V 1900.

w. A. STUBBLEBNE.

FURNACE.

(A'pplicatmn med out. 5, 1899,;

(No Model.) 3 Sheets-Sheet 2.

am: i ma am* :ma

gwoon/woz fltto'au ms No. a5|,583. Patented lune l2, |900.

w. A. sTuBBLEmE,

FURNAGE.

(Application led Oct. 5, 1899.) (N0 NUGGI- 3 sham-snee: a.

'mz mams PETERS ca. Fumo-urna. wAsNmc-TON, n c` UNITED STATES PATENT Fries.,

FURNAQE.

SPECIFICATION forming part'of Letters Patent No. 651,583, dated June v12, 1900.

Application tiled October 5, 1899. Serial No. 732,678. (No model.) v

To all whom t may concern,.-

Be it known that I, WINFRED ALBnnTIs STUBBLEBINE, a citizen of the United States, residing at Bethlehem, in the county ofNorthampton and State of Pennsylvania, have invented certain nenr and useful Improvements in Furnaces; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

My invention relates to improvements in metallurgical furnaces, more particularly that class using gaseous fuel as the heating agent, and is especially applicable to heating, puddling, Crucible, and open-hearth furnaces.

It has for its object principally to provide more nearly for the complete or perfect combustion of said fuel than has heretofore been possible. Thisit is proposed todo or bring about by controlling the heat and directing or distributin git uniformly to any given point as desired. These desirable qualities are especially valuable for all heating, puddling, Crucible, and open-hearth furnaces.

To these ends the invention consists, primarily, of a regenerative chamber arranged, preferably, adjoining the rear end of the furnace near the fire or combustion chamber. Through this chamber a portion of the gases from the-flre or combustion chamber is conducted through suitable iiues in the furnace- Walls, the blast supplied to this chamber then being heated and at the same time thoroughly mixing or commingling with the gases prev4 paratory to the readmission of said gases to the combustion-chamber, preferably through the roof or arch of the furnace, said gases passing slowly into the combustion-chamber to promote or support combustion.

The features of my invention are readily applied to any existing style of furnace, including the ordinary reverberatory furnace, having a contracted passage technically known as the neck dispensed With therein, thus enlarging the hearth of the furnace.

The good results of my invention are due,

it is believed, first, to so directing the blast into the regenerative chamber that there shall bea freer passage of the gases into and through said chamber than would otherwise be the case and the readmission of these gases combined with air to the combustionchamber regulated so as to enter and pass therethrough in a gentle or slowly-moving current; second, tothe thorough commingling or mixing of the gases in the regenerative chamber before passing through the roof or arch of the combustion-chamber and back into the combustion-chamber and then over the bridge-Wall to the Workin g chamber of the furnace, and, third, there result less ashes by half, cleaner fire, and more intense heat from a less quantity of fuel than possible by the use of the ordinary furnace.

In the accompanying drawings, illustrating the preferred embodiment of my invention, Figure l is a sectional elevation. Fig. 2 is a horizontal section. Eig. 3 is a broken sec-v tional View taken on the line oo .r of Fig. 4E.

Fig. 3 is a vertical section taken at right angles to the plane of Fig. 1. Fig. 4: is a broken longitudinal sectional view of a modification disclosingtwo regenerative chambers.

It Will be understoodthat latitude is allowed herein as to details, as they may be varied or changed at pleasure Without departing from the spirit of my invention and the same yet remain intact and be protected, the same being colnpassed by the scope of my claims.

l In carrying out my invention I suitably erect the furnace l on general lines, preferably as shown herein, the same having the usual Working chamber 2 and a heating or combustion'chamber 3, with the separating bridge-wall Safas heretofore. The working chamber 2 has the usual charging-doors 4:- three (more or less) in number, as shown. In this furnace, however, I provide a regenerative .chamber 5, arranging it at What I designate as the rear end thereof, immediately adjoining the heating or grated combustionchamber 3. In this regenerative chamber I` dispose an arrangement of air-blast pipes l0, comprising a bottom and a top horizontal pipe 5fL 5b, respectively, connectedby end vertical pipes 5C 5C, and a seriesof additional vertical pipes connecting with said bottom pipe and having their upper ends terminating in horizontal arms or delivery-tubes 5e, passed IOO into passages in the kregenerative-chamber Wall presently described. This regenerative chamber 5 is adapted to permit of the introduction directly therein at the bottom of an air blast or blasts to commingle or mix with the gases admitted thereinto through passages' in the wvall ot-the furnace `ifrointhe combustion or grated chamber 3. To this end the regenerative chamber 5 may be built up internally, as shown in Fig. 1, of brick- Work, tile, or fire-brick, being so arranged as to produce a horizon tal bottom passage 6 and vertical passages 6b, communicating there- With at their lower ends, said passages being partially formed of partitions 6X, terminating, however, a" short distancebelow ythe upper endllofisaid chamber; The `upper portion of bei `Wall L and la gsupplementalfehamlber 8, compassa'ges' p init-the arelroff the f combustion'- chainberl withv said combustion orf heating chai be for ilower passages G, above referredto, in itheibrickwork;tile,f1or "[ire-bri'clr 'byrmeans of lpipetlO,` leading fro inA fa? blast-generator, (notl-ii shbvvin') `1 delivering -f its air blast up through" the `firelgrateinto fthe com bus'tibnL chamber, passing from lthence throu said passages""6%l This fbla'stf passes* yup` through their way `baclciintothe adjoining'iireor com-y bustionfchanrber via ,passages "and `chamber bustionr isdesignedl y'to be so regulated fby valve' *10X-l, suitably disposed `in the `blast-feedL in glpip'ellO, as to passitheain or blast into-the n nder-controlyas above stated to remove with it aiiylsurplusi oxygen which maybe-present inlfftlrell upper stratum of the 1-furnace4iame,

action, drawing the gaseous substances or ele a cartes said*- chamber communicates lwithl upper ad ditiouali passages7 inthe regenerativelcham-` l The 'blast'sdirectediinto the botthetregenerative chamber, said; blastllbein irstheated by'theheatedrgases, also enter` ingnsaidf" regenerative chamber,` as before* statedgand' thence'faceomrpaniessaid gases "onf 7 8 tosuppqrt onpromote'combustiomv The passage offthefair wijtli Ithe lgase's to said com tiret fort combustion i chamber in a gentle or anioving curren tf; Thus' 'While combus-f tion lis? promoted by 'theaiig" yet' its admission or introduction is not permitted by beingheldr which; lif-= carriedlby'a more forcible blastinto` thelvvovrkfihgil chamber into eontactr'lwit'lrthe1 is 'notedlthatthe llo'Wer blast is controlled by a valve iorfvalves 'l0d,'"suitabl y arrangedy yinla lower*fair-"blastv pipe 'i 10, introducing the 4air` blastl-belowand up landitlirlough :the 'fire-grate' into' heilcombustion#chamber as to secure" possibleproduetion of ca'rbenie :gentleness-Pof" itscurrent and* yetf i prevent: iltheftra'usler of dirt from the grate 1 :combustion-chamber to the 'workinglan d I seen Fethereby materially 'better quality f imlrpr'cduct@`- Thusavhighly-heatedJ or hot blastl`=ol l 'ir fis *put in operation ,L ory l:seti Eup,lll Whielrflxasfthe eiiect to augment the y@motion ments from said combustioinehamber into the regenerative"chamber; Thisfincreased suction action increases the heating action or 7o capacity of the regenerative furnace in turn, acting Withincreased intensity upon the gaseous elements or substances, resulting in a morenearly perfect or-eoniplete combustion of the gases than has heretofore been-possible. 7 5 Said'circulaton returns these gases in their thusintensied heated condition to the combustion-chamber, greatly augmenting the heatof thelatter, said gasesl then passing into the Working chamber. Thus the possibility So of practicallyutilizing this gaseous fuel to the last degree, greatly augmenting the heating of the Working-chamber, is accordinglyj secured, increasing the output or Work of the furnace; 85 In the modiied formiofi my"furnaceasfdis closed-by l'Iligs and 5 I substitutel `pipi-)sill for. the 'internal ybri'ckwork; tile; orreibrieki arrangement ol-passages.l f Thisarrangement of pipes in the light of 'thelaboveldescribed9o ar angement of passages'.` W'illlbe" readily understood.- It is remarked,`hovvever, that: ther upper horizontal arms or endwportionslof the i" pipesy '5C` shouldibe, or are intended to"-b`e,-`inlclosed in outer larger pipesll, suitably fitted 95 thereon `to prevent the direetl contact" fof the 2 `flame 1 With said: pipes as diselosedlby iFig; `1.` l

Having thus ffully described-my inventiong' what I claim as new, and desire to secure'byi Letters "Patente is l. A'furnace oi-thev 'character described ,Ico'nilll pris'in g aregenerative chambergainblastpipes` 1 arranged insaid regenerative chamber,a com# bustibinchambercommunicating,with saidr generative'cliamber near` the bottom of the lat#k 1 o5 ter, and asupplementalroofschamberhaving.'D passages'rth ro ugh its `bottom fWall-.conimunican ing with saidcombustionchanlber; said@ a1 blast pipeslcomprising vertiealpipesconnectlf ing-Withl Iaflower horizontal .f pi pe arranged in 1 t c the bottomof saidregenerative 'cham-ber, said 1 vertical pipes fhavinglfupper='end horizontal: 1 pipe". extensions lor arms 'arrangedloosely in; and@ opening into, f passages fin the Yregeneraw tive-:chamber- Wall., andllm'eans forprovidingl r r 5' saidl airblast `pipes with airsblasts; 'isubstane tiallyas 'set'fortligY 2; A furnace of the characterrdescribed'cour-Si p rising a regenerativechanib-er, a combustion# chamber communicating fwitli'said regenerafi 12o tive chamber, nearv the 'bottom 1 of'flthe latter, air-blast pipes arrangedin said regenerative chamber, a supplementall roof-'chambenfliav'l ing passages` through its` bottom- Wall! com# municatin g with saidy regenerative rchaniben5 1 z 5 near the toplof 'the llatter, said'-air`blastpipesAm co [uprising verti'ca-lrrpipes conneeting:vviftlia -l lowerl horizontal pipe arranged'in the bottom 11 of saidy l regenerative fchanibe'r,` said vertical:-v pipes having--uppenend -v horizontal f lpipefex- 13o tensions" or l arm-s arrangedy looselya in ,u and opening into, passages' inv Ithe wregenerativel* IOC) nected to said lower horizontal pipe, at its ends, and means for supplying air-blasts to said additional vertical pipes, substantially as =set forth,

3. vA furnace of the character described,com prisin g a regenerative chamber, air-blast pipes arranged in said regenerative chamber, a combustion-chamber, and a supplemental roofchamber having air passages through the bottom wall thereof communicating with said combustion ehamber, said air blast pipes comprising vertical pipes connecting with bottom and top horizontal pipes, said top hori- Zontal pipes arranged loosely in and opening into passages in the regenerative-chamber Walls, and a blast-pipe connecting said series of air-blast pipes with an air-blast generator, substantially as specied.

4. A furnace of the character described comprisin g a regenerative chamber,a combustionchamber communicating with said regenerative chamber near the bottom of the latter,

air-blast pipes arranged in said regenerative` WINFRED ALBERTIS STUBBLEBINE.

W'itnesses:

WM. STUBBLEBINE, WILLIAM J. FINK. 

